package com.stu.controller;

import cn.hutool.json.JSONObject;
import com.alipay.api.AlipayApiException;
import com.alipay.api.AlipayClient;
import com.stu.commons.AliPay;
import com.alipay.api.DefaultAlipayClient;
import com.alipay.api.internal.util.AlipaySignature;
import com.alipay.api.request.AlipayTradePagePayRequest;
import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
import com.stu.config.AlipayConfig;
import com.stu.mapper.MyorderMapper;
import com.stu.pojo.Flow;
import com.stu.pojo.Myorder;
import com.stu.service.IFlowService;
import org.springframework.amqp.rabbit.core.RabbitTemplate;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
import jakarta.annotation.Resource;
import jakarta.servlet.http.HttpServletRequest;
import jakarta.servlet.http.HttpServletResponse;
import java.util.HashMap;
import java.util.Map;

// wnhxjf4643@sandbox.com
@RestController
@RequestMapping("/alipay")
public class AliPayController {
    private static final String GATEWAY_URL = "https://openapi-sandbox.dl.alipaydev.com/gateway.do";
    private static final String FORMAT = "JSON";
    private static final String CHARSET = "UTF-8";
    //签名方式
    private static final String SIGN_TYPE = "RSA2";

    @Resource
    private AlipayConfig aliPayConfig;

    @Autowired
    private MyorderMapper myorderMapper;
    @Autowired
    private IFlowService flowService;
    @Autowired
    private RabbitTemplate rabbitTemplate;

    //rowqdb8199@sandbox.com
    @GetMapping("/pay") // ?subject=xxx&traceNo=xxx&totalAmount=xxx
    public void pay(AliPay aliPay, HttpServletResponse httpResponse) throws Exception {
        // 1. 创建支付宝客户端，通用SDK提供的Client，负责调用支付宝的API
        AlipayClient alipayClient = new DefaultAlipayClient(GATEWAY_URL, aliPayConfig.getAppId(),
                aliPayConfig.getAppPrivateKey(), FORMAT, CHARSET, aliPayConfig.getAlipayPublicKey(), SIGN_TYPE);

        // 2. 创建 Request并设置Request参数
        AlipayTradePagePayRequest request = new AlipayTradePagePayRequest();  // 发送请求的 Request类
        request.setNotifyUrl(aliPayConfig.getNotifyUrl());
        request.setReturnUrl(aliPayConfig.getReturnUrl()+"?traceNo="+aliPay.getTraceNo());

        // 3. 设置业务参数
        JSONObject bizContent = new JSONObject();
        bizContent.set("out_trade_no", aliPay.getTraceNo());  // 生成订单编号
        bizContent.set("total_amount", aliPay.getTotalAmount()); // 订单的总金额
        bizContent.set("subject", aliPay.getSubject());   // 支付的名称
        bizContent.set("product_code", "FAST_INSTANT_TRADE_PAY");  // 固定配置
        request.setBizContent(bizContent.toString());

        //4. 执行请求并返回支付页面
        String form = "";
        try {
            form = alipayClient.pageExecute(request).getBody(); // 调用SDK生成表单
        } catch (AlipayApiException e) {
            e.printStackTrace();
        }
        httpResponse.setContentType("text/html;charset=" + CHARSET);
        httpResponse.getWriter().write(form);// 直接将完整的表单html输出到页面
        httpResponse.getWriter().flush();
        httpResponse.getWriter().close();
    }

    //  支付结果通知接口(/notify)
    @PostMapping("/notify")  // 注意这里必须是POST接口
    public String payNotify(HttpServletRequest request) throws Exception {
        if (request.getParameter("trade_status").equals("TRADE_SUCCESS")) {
            //System.out.println("=========支付宝异步回调========");

            // 获取所有参数
            Map<String, String> params = new HashMap<>();
            Map<String, String[]> requestParams = request.getParameterMap();
            for (String name : requestParams.keySet()) {
                params.put(name, request.getParameter(name));
                // System.out.println(name + " = " + request.getParameter(name));
            }

            // 验证签名
            String outTradeNo = params.get("out_trade_no");
            String gmtPayment = params.get("gmt_payment");
            String alipayTradeNo = params.get("trade_no");

            String sign = params.get("sign");
            String content = AlipaySignature.getSignCheckContentV1(params);
            boolean checkSignature = AlipaySignature.rsa256CheckContent(content, sign, aliPayConfig.getAlipayPublicKey(), "UTF-8"); // 验证签名

            // 处理支付成功逻辑
            if (checkSignature) {
                // 验签通过
//                System.out.println("交易名称: " + params.get("subject"));
//                System.out.println("交易状态: " + params.get("trade_status"));
//                System.out.println("支付宝交易凭证号: " + params.get("trade_no"));
//                System.out.println("商户订单号: " + params.get("out_trade_no"));
//                System.out.println("交易金额: " + params.get("total_amount"));
//                System.out.println("买家在支付宝唯一id: " + params.get("buyer_id"));
//                System.out.println("买家付款时间: " + params.get("gmt_payment"));
//                System.out.println("买家付款金额: " + params.get("buyer_pay_amount"));

                 //查询订单
                QueryWrapper<Myorder> queryWrapper = new QueryWrapper<>();
                queryWrapper.eq("myorder_number", outTradeNo);
                Myorder myorder = myorderMapper.selectOne(queryWrapper);
                Flow flow = new Flow();
                flow.setFlowId(myorder.getMyorderNumber());
                flow.setMyorderId(myorder.getMyorderId());
                flow.setFlowNumber(alipayTradeNo);
                flow.setFlowPayPrice(Double.valueOf(myorder.getMyorderPrice()));
                flow.setFlowPayMethod("支付宝支付");
                flow.setFlowPayTime(gmtPayment);
                flow.setFlowStatus(1);
                flowService.save(flow);
                rabbitTemplate.convertAndSend("orderFinishedExchange","PayOrder",myorder);
                rabbitTemplate.convertAndSend("orderFinishedExchange","DecProductNum",myorder);
               // rabbitTemplate.convertAndSend("orderFinishedExchange","OrderSuccessMsg",myorder);
                rabbitTemplate.convertAndSend("orderFinishedExchange","zhtUpdateKey",myorder);
            }
        }
        return "success";
    }
}

